Editorial

Ohne Zusammenfassung

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Editorial

     

Innovation on demand—Can public procurement drive market success of innovations?

Public procurement has been at the centre of recent discussions on innovation policy. We embed it into the broader framework of public policies to stimulate innovation: regulations, R&D subsidies and basic research at universities. We synthesize the characteristics of all four instruments conceptionally and quantitatively compare their effects on innovation success for 1100 firms in Germany. We find that public procurement and knowledge spillovers from universities propel innovation success equally. The benefits of university knowledge apply uniformly to all firms. However, public procurement is especially effective for smaller firms in regions under economic stress and in distributive or technological services.     

Prospective gymnasium teachers' conceptions of chemistry learning and teaching

The aim of the study was to investigate prospective gymnasium teachers' conceptions of chemistry learning and teaching. Data were collected through individual interviews with nine prospective teachers at one German university. Phenomenography served as the methodological framework for the study. The findings revealed that chemistry learning is conceptualized as gaining knowledge, problem-solving and constructing personal understandings; and that chemistry teaching is conceptualized as transferring knowledge, problem-posing and interacting with pupils. The majority of the prospective teachers' conceptions of learning chemistry were considered reproductive rather than constructive and their conceptions of chemistry teaching were viewed as facilitating reproductive learning. Comparisons of the dominant conceptions of learning chemistry and teaching chemistry held by each prospective teacher revealed mixed support for the assumption that if one holds a reproductive (or constructive) conception of teaching, then (s)he will also hold a reproductive (or constructive) conception of learning. Support for the assumption was found in the reproductive-oriented relationship between conceptions of learning chemistry as gaining knowledge and of teaching chemistry as transferring knowledge, but not found in the relationships between learning chemistry as problem-solving and teaching chemistry as problem-posing and between learning chemistry as gaining knowledge and interacting with pupils.     

Methodik, Sprachen und Grundlagen des Software Engineering

Ohne Zusammenfassung     

The Prussian Academy of Sciences and Humanities During the Weimar Republic

The German Revolution of November 1918 dramatically altered the Academys view of its relationship with government. In particular, the Academys Prussian tradition had to be rethought. From initial wariness to grudging acceptance, the Academy came to accept the Weimar regime. This paper studies the politics of the Academy, uncovers factions and fault lines amongst its members, and offers a fresh interpretation on the Academys relationship with Albert Einstein.     

The Academy and the Engineering Sciences: An Unwelcome Royal Gift

On 19 March 1900, at the bicentenary celebrations of the Prussian Academy of Sciences, Kaiser Wilhelm II established three new fellowships in engineering sciences. This was in many aspects an unwanted gift, and one which tested the Academys relationship between pure and applied science. In the context of contemporary struggles between traditional and modern knowledge, this paper shows how the Academy confronted the newly emerging engineering sciences, and how it resolved a potential challenge in ways that ensured its continuing autonomy.     

Ein Fuzzy-Rechercheassistent für bibliographische Datenbanken

Dadurch, dass Literaturnachweise und Publikationen zunehmend in elektronischer und auch vernetzter Form angeboten werden, haben Anzahl und Größe der von wissenschaftlichen Bibliotheken angebotenen Datenbanken erheblich zugenommen. In den verbreiteten Metasuchen über mehrere Datenbanken sind Suchen mit natürlichsprachlichen Suchbegriffen heute der kleinste gemeinsame Nenner. Sie führen aber wegen der bekannten Mängel des booleschen Retrievals häufig zu Treffermengen, die entweder zu speziell oder zu lang und zu unspezifisch sind. Die Technische Fakultät der Universität Bielefeld und die Universitätsbibliothek Bielefeld haben einen auf Fuzzy- Suchlogik basierenden Rechercheassistenten entwickelt, der die Suchanfragen der Benutzer in Teilsuchfragen an die externen Datenbanken zerlegt und die erhaltenen Teilsuchergebnisse in einer nach Relevanz sortierten Liste kumuliert. Es ist möglich, Suchbegriffe zu gewichten und durch Fuzzy- Aggregationsoperatoren zu verknüpfen, die auf der Benutzeroberfläche durch natürlichsprachliche Fuzzy-Quantoren wie möglichst viele, einige u.a. repräsentiert werden. Die Suchparameter werden in der intuitiv bedienbaren einfachen Suche automatisch nach heuristischen Regeln ermittelt, können in einer erweiterten Suche aber auch explizit eingestellt werden. Die Suchmöglichkeiten werden durch Suchen nach ähnlichen Dokumenten und Vorschlagslisten für weitere Suchbegriffe ergänzt. Wir beschreiben die Ausgangssituation, den theoretischen Ansatz, die Benutzeroberfläche und berichten über eine Evalution zur Benutzung und einen Vergleichstest betreffend die Effizienz der Retrievalmethodik.